Thanks guys, I get it now, the velocity of the shell from the tank will keep moving with the same speed as the tank, and I'm guessing that's why it'll land right on top of it.
I need some help explaining these concepts
1. Suppose a tank is able to point its barrel up at an angle of 90o. If the tank is in motion and fires a shell straight up, where will the shell land if the tank maintains a constant motion. (don't consider any air resistance) a) in front of the...